If the temps are in the teens C then you might have to wait until next year -most beekeepers will only open their hives when it's cold for short inspections, and won't pull out comb for you to photograph unless it's warm (mid 20s). I kinda blew my chance to shoot a hive this year cause I waited too long and now the temps are dropping (17C high today).
If you do shoot comb stand at least 10 to 15 meters away from the hive and ask the beekeeper to bring the comb to you -honeybees are usually docile as long as you're not close to the hive. Also ask the "beek" to smoke the hive to calm the girls down for you. If you have a cell phone then turn it off (the bees will alert on you if it rings). Wear white since dark colors will make you resemble a predator (raccoon, bear, etc.). I don't use any protective gear, but I'm also not allergic to the stings...